Employee Benefit Plans (Schedule Of Total Stock-Based Compensation Expense Resulting From Stock Options, Restricted Stock Awards, And The Employee Stock Purchase Plan) (Details) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 6 Months Ended | ||
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Jul. 01, 2012
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Jul. 03, 2011
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Jul. 01, 2012
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Jul. 03, 2011
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Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
Stock-based compensation expense | $ 3,395 | $ 3,508 | $ 6,787 | $ 6,880 |
Cost Of Revenue [Member]
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Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
Stock-based compensation expense | 278 | 243 | 548 | 478 |
Research And Development [Member]
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Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
Stock-based compensation expense | 677 | 606 | 1,288 | 1,267 |
Sales And Marketing [Member]
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Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
Stock-based compensation expense | 1,191 | 1,384 | 2,385 | 2,685 |
General And Administrative [Member]
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Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
Stock-based compensation expense | $ 1,249 | $ 1,275 | $ 2,566 | $ 2,450 |